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diff --git a/zend/demos/Zend/Gdata/YouTubeVideoBrowser/index.php b/zend/demos/Zend/Gdata/YouTubeVideoBrowser/index.php
new file mode 100755
index 0000000..607b905
--- /dev/null
+++ b/zend/demos/Zend/Gdata/YouTubeVideoBrowser/index.php
@@ -0,0 +1,278 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Gdata
+ * @subpackage Demos
+ * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+
+/**
+ * PHP sample code for the YouTube data API.  Utilizes the Zend Framework
+ * Zend_Gdata component to communicate with the YouTube data API.
+ *
+ * Requires the Zend Framework Zend_Gdata component and PHP >= 5.2.11
+ *
+ * This sample is run from within a web browser.  These files are required:
+ * index.php - the main logic, which interfaces with the YouTube API
+ * interface.html - the HTML to represent the web UI
+ * web_browser.css - the CSS to define the interface style
+ * web_browser.js - the JavaScript used to provide the video list AJAX interface
+ *
+ * NOTE: If using in production, some additional precautions with regards
+ * to filtering the input data should be used.  This code is designed only
+ * for demonstration purposes.
+ */
+
+/**
+ * @see Zend_Loader
+ */
+require_once 'Zend/Loader.php';
+
+/**
+ * @see Zend_Gdata_YouTube
+ */
+Zend_Loader::loadClass('Zend_Gdata_YouTube');
+
+/**
+ * Finds the URL for the flash representation of the specified video
+ *
+ * @param  Zend_Gdata_YouTube_VideoEntry $entry The video entry
+ * @return string|null The URL or null, if the URL is not found
+ */
+function findFlashUrl($entry)
+{
+    foreach ($entry->mediaGroup->content as $content) {
+        if ($content->type === 'application/x-shockwave-flash') {
+            return $content->url;
+        }
+    }
+    return null;
+}
+
+/**
+ * Returns a feed of top rated videos for the specified user
+ *
+ * @param  string $user The username
+ * @return Zend_Gdata_YouTube_VideoFeed The feed of top rated videos
+ */
+function getTopRatedVideosByUser($user)
+{
+    $userVideosUrl = 'https://gdata.youtube.com/feeds/users/' .
+                     $user . '/uploads';
+    $yt = new Zend_Gdata_YouTube();
+    $ytQuery = $yt->newVideoQuery($userVideosUrl);
+    // order by the rating of the videos
+    $ytQuery->setOrderBy('rating');
+    // retrieve a maximum of 5 videos
+    $ytQuery->setMaxResults(5);
+    // retrieve only embeddable videos
+    $ytQuery->setFormat(5);
+    return $yt->getVideoFeed($ytQuery);
+}
+
+/**
+ * Returns a feed of videos related to the specified video
+ *
+ * @param  string $videoId The video
+ * @return Zend_Gdata_YouTube_VideoFeed The feed of related videos
+ */
+function getRelatedVideos($videoId)
+{
+    $yt = new Zend_Gdata_YouTube();
+    $ytQuery = $yt->newVideoQuery();
+    // show videos related to the specified video
+    $ytQuery->setFeedType('related', $videoId);
+    // order videos by rating
+    $ytQuery->setOrderBy('rating');
+    // retrieve a maximum of 5 videos
+    $ytQuery->setMaxResults(5);
+    // retrieve only embeddable videos
+    $ytQuery->setFormat(5);
+    return $yt->getVideoFeed($ytQuery);
+}
+
+/**
+ * Echo img tags for the first thumbnail representing each video in the
+ * specified video feed.  Upon clicking the thumbnails, the video should
+ * be presented.
+ *
+ * @param  Zend_Gdata_YouTube_VideoFeed $feed The video feed
+ * @return void
+ */
+function echoThumbnails($feed)
+{
+    foreach ($feed as $entry) {
+        $videoId = $entry->getVideoId();
+        echo '<img src="' . $entry->mediaGroup->thumbnail[0]->url . '" ';
+        echo 'width="80" height="72" onclick="ytvbp.presentVideo(\'' . $videoId . '\')">';
+    }
+}
+
+/**
+ * Echo the video embed code, related videos and videos owned by the same user
+ * as the specified videoId.
+ *
+ * @param  string $videoId The video
+ * @return void
+ */
+function echoVideoPlayer($videoId)
+{
+    $yt = new Zend_Gdata_YouTube();
+
+    $entry = $yt->getVideoEntry($videoId);
+    $videoTitle = $entry->mediaGroup->title;
+    $videoUrl = findFlashUrl($entry);
+    $relatedVideoFeed = getRelatedVideos($entry->getVideoId());
+    $topRatedFeed = getTopRatedVideosByUser($entry->author[0]->name);
+
+    print <<<END
+    <b>$videoTitle</b><br />
+    <object width="425" height="350">
+      <param name="movie" value="${videoUrl}&autoplay=1"></param>
+      <param name="wmode" value="transparent"></param>
+      <embed src="${videoUrl}&autoplay=1" type="application/x-shockwave-flash" wmode="transparent"
+        width=425" height="350"></embed>
+    </object>
+END;
+    echo '<br />';
+    echoVideoMetadata($entry);
+    echo '<br /><b>Related:</b><br />';
+    echoThumbnails($relatedVideoFeed);
+    echo '<br /><b>Top rated videos by user:</b><br />';
+    echoThumbnails($topRatedFeed);
+}
+
+/**
+ * Echo video metadata
+ *
+ * @param  Zend_Gdata_YouTube_VideoEntry $entry The video entry
+ * @return void
+ */
+function echoVideoMetadata($entry)
+{
+    $title = $entry->mediaGroup->title;
+    $description = $entry->mediaGroup->description;
+    $authorUsername = $entry->author[0]->name;
+    $authorUrl = 'http://www.youtube.com/profile?user=' . $authorUsername;
+    $tags = $entry->mediaGroup->keywords;
+    $duration = $entry->mediaGroup->duration->seconds;
+    $watchPage = $entry->mediaGroup->player[0]->url;
+    $viewCount = $entry->statistics->viewCount;
+    $rating = $entry->rating->average;
+    $numRaters = $entry->rating->numRaters;
+    $flashUrl = findFlashUrl($entry);
+    print <<<END
+    <b>Title:</b> ${title}<br />
+    <b>Description:</b> ${description}<br />
+    <b>Author:</b> <a href="${authorUrl}">${authorUsername}</a><br />
+    <b>Tags:</b> ${tags}<br />
+    <b>Duration:</b> ${duration} seconds<br />
+    <b>View count:</b> ${viewCount}<br />
+    <b>Rating:</b> ${rating} (${numRaters} ratings)<br />
+    <b>Flash:</b> <a href="${flashUrl}">${flashUrl}</a><br />
+    <b>Watch page:</b> <a href="${watchPage}">${watchPage}</a> <br />
+END;
+}
+
+/**
+ * Echo the list of videos in the specified feed.
+ *
+ * @param  Zend_Gdata_YouTube_VideoFeed $feed The video feed
+ * @return void
+ */
+function echoVideoList($feed)
+{
+    echo '<table class="videoList">';
+    echo '<tbody width="100%">';
+    foreach ($feed as $entry) {
+        $videoId = $entry->getVideoId();
+        $thumbnailUrl = $entry->mediaGroup->thumbnail[0]->url;
+        $videoTitle = $entry->mediaGroup->title;
+        $videoDescription = $entry->mediaGroup->description;
+        print <<<END
+        <tr onclick="ytvbp.presentVideo('${videoId}')">
+        <td width="130"><img src="${thumbnailUrl}" /></td>
+        <td width="100%">
+        <a href="#">${videoTitle}</a>
+        <p class="videoDescription">${videoDescription}</p>
+        </td>
+        </tr>
+END;
+    }
+    echo '</table>';
+}
+
+/*
+ * The main controller logic of the YouTube video browser demonstration app.
+ */
+$queryType = isset($_POST['queryType']) ? $_POST['queryType'] : null;
+
+if ($queryType === null) {
+    /* display the entire interface */
+    include 'interface.html';
+} else if ($queryType == 'show_video') {
+    /* display an individual video */
+    if (array_key_exists('videoId', $_POST)) {
+        $videoId = $_POST['videoId'];
+        echoVideoPlayer($videoId);
+    } else if (array_key_exists('videoId', $_GET)) {
+        $videoId = $_GET['videoId'];
+        echoVideoPlayer($videoId);
+    } else {
+        echo 'No videoId found.';
+        exit;
+    }
+} else {
+    /* display a list of videos */
+    $searchTerm = $_POST['searchTerm'];
+    $startIndex = $_POST['startIndex'];
+    $maxResults = $_POST['maxResults'];
+
+    $yt = new Zend_Gdata_YouTube();
+    $query = $yt->newVideoQuery();
+    $query->setQuery($searchTerm);
+    $query->setStartIndex($startIndex);
+    $query->setMaxResults($maxResults);
+
+    /* check for one of the standard feeds, or list from 'all' videos */
+    switch ($queryType) {
+    case 'most_viewed':
+        $query->setFeedType('most viewed');
+        $query->setTime('this_week');
+        $feed = $yt->getVideoFeed($query);
+        break;
+    case 'most_recent':
+        $query->setFeedType('most recent');
+        $feed = $yt->getVideoFeed($query);
+        break;
+    case 'recently_featured':
+        $query->setFeedType('recently featured');
+        $feed = $yt->getVideoFeed($query);
+        break;
+    case 'top_rated':
+        $query->setFeedType('top rated');
+        $query->setTime('this_week');
+        $feed = $yt->getVideoFeed($query);
+        break;
+    case 'all':
+        $feed = $yt->getVideoFeed($query);
+        break;
+    default:
+        echo 'ERROR - unknown queryType - "' . $queryType . '"';
+        break;
+    }
+    echoVideoList($feed);
+}
diff --git a/zend/demos/Zend/Gdata/YouTubeVideoBrowser/interface.html b/zend/demos/Zend/Gdata/YouTubeVideoBrowser/interface.html
new file mode 100644
index 0000000..cfb7576
--- /dev/null
+++ b/zend/demos/Zend/Gdata/YouTubeVideoBrowser/interface.html
@@ -0,0 +1,79 @@
+<!---
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Gdata
+ * @subpackage Demos
+ * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+-->
+<html>
+<head>
+  <title>YouTube data API Video Browser in PHP</title>
+  <link href="video_browser.css" type="text/css" rel="stylesheet"/>
+  <script src="video_browser.js" type="text/javascript"></script>
+</head>
+<body>
+<div id="main">
+  <div id="titleBar">
+    <div id="titleText"><h1>YouTube data API Video Browser in PHP</h1></div>
+    <div id="searchBox" style="display: none;">
+      <form id="searchForm" onsubmit="ytvbp.listVideos(this.queryType.value, this.searchTerm.value, 1); return false;">
+        <select name="queryType" onchange="ytvbp.queryTypeChanged(this.value, this.form.searchTerm);">
+          <option value="all" selected="true">All Videos</option>
+          <option value="top_rated">Top Rated Videos</option>
+          <option value="most_viewed">Most Viewed Videos</option>
+          <option value="recently_featured">Recently Featured Videos</option>
+
+        </select>
+        <input name="searchTerm" type="text" value="puppy">
+        <input type="submit" value="Search">
+      </form>
+    </div>
+    <br />
+  </div>
+  <br clear="all" />
+  <div id="mainSearchBox">
+    <h2>Search YouTube:</h2>
+    <form id="mainSearchForm" onsubmit="ytvbp.listVideos(this.queryType.value, this.searchTerm.value, 1); document.forms.searchForm.searchTerm.value=this.searchTerm.value; ytvbp.hideMainSearch(); document.forms.searchForm.queryType.selectedIndex=this.queryType.selectedIndex; return false;">
+      <select name="queryType" onchange="ytvbp.queryTypeChanged(this.value, this.form.searchTerm);">
+        <option value="all" selected="true">All Videos</option>
+        <option value="top_rated">Top Rated Videos</option>
+        <option value="most_viewed">Most Viewed Videos</option>
+        <option value="recently_featured">Recently Featured Videos</option>
+
+      </select>
+      <input name="searchTerm" type="text" value="puppy">
+      <input type="submit" value="Search">
+    </form>
+  </div>
+  <br clear="all" />
+  <div id="searchResults">
+    <div id="searchResultsListColumn">
+      <div id="searchResultsVideoList"></div>
+      <div id="searchResultsNavigation">
+        <form id="navigationForm">
+          <input type="button" id="previousPageButton" onclick="ytvbp.listVideos(ytvbp.previousQueryType, ytvbp.previousSearchTerm, ytvbp.previousPage);" value="Back" style="display: none;"></input>
+          <input type="button" id="nextPageButton" onclick="ytvbp.listVideos(ytvbp.previousQueryType, ytvbp.previousSearchTerm, ytvbp.nextPage);" value="Next" style="display: none;"></input>
+        </form>
+      </div>
+    </div>
+    <div id="searchResultsVideoColumn">
+      <div id="videoPlayer"></div>
+    </div> 
+  </div>
+</div>
+</body>
+</html>
diff --git a/zend/demos/Zend/Gdata/YouTubeVideoBrowser/video_browser.css b/zend/demos/Zend/Gdata/YouTubeVideoBrowser/video_browser.css
new file mode 100644
index 0000000..1984ed9
--- /dev/null
+++ b/zend/demos/Zend/Gdata/YouTubeVideoBrowser/video_browser.css
@@ -0,0 +1,152 @@
+body {
+  background-color: white;
+  color: black;
+  font-family: Arial, sans-serif;
+  font-size: small;
+  margin: 8px;
+  margin-top: 3px;
+}
+
+img {
+  border: 0;
+}
+
+table {
+  border-collapse: collapse;
+}
+
+th, td {
+  padding: 0;
+  vertical-align: top;
+  text-align: left;
+}
+
+a:link {
+  color: #0000cc;
+}
+
+a:active {
+  color: #cc0000;
+}
+
+a:visited {
+  color: #551a8b;
+}
+
+h1 {
+  font-size: x-large;
+  margin-top: 0px;
+  margin-bottom: 5px;
+}
+
+h2 {
+  font-size: large;
+}
+
+h3 {
+  font-size: medium;
+}
+
+h4 {
+  font-size: small;
+}
+
+form {
+  display: inline;
+  margin: 0;
+  padding: 0;
+}
+
+li {
+  margin-bottom: 0.25em;
+}
+
+pre, code {
+  color: #007000;
+  font-family: "bogus font here", monospace;
+  font-size: 100%;
+}
+
+pre {
+  border: 1px solid silver;
+  background-color: #f5f5f5;
+  padding: 0.5em;
+  overflow: auto;
+  margin: 2em;
+}
+
+pre ins {
+  color: #cc0000;
+  font-weight: bold;
+  text-decoration: none;
+}
+
+/* "Selected" links */
+
+a.selected, .selected a, .selected {
+  color: black;
+  font-weight: bold;
+  text-decoration: none;
+}
+
+a.selected:visited, .selected a:visited {
+  color: black;
+}
+
+p.videoDescription {
+  font-size: small;
+  margin: 0;
+  padding: 0;
+}
+
+.videoList td {
+  padding-bottom: 5px; 
+  padding-right: 5px; 
+}
+
+#titleBar {
+  border: 1px solid silver;
+  background-color: #e5ecf9;
+  font-size: large;
+  font-weight: bold;
+  margin: 0;
+  padding: 0;
+  padding-top: 5px;
+  padding-bottom: 10px;
+  padding-left: 10px;
+  padding-right: 10px;
+  margin-top: 5px;
+  margin-bottom: 15px;
+}
+
+#titleText {
+  float: left;
+}
+
+#searchBox {
+  float: right;
+}
+
+#mainSearchBox {
+  background-color: #e5ecf9;
+  border: 1px solid silver;
+  width: 250;
+  padding-top: 5px;
+  padding-bottom: 5px;
+  padding-left: 10px;
+  padding-right: 10px;
+}
+
+#searchResults {
+  width: 100%;
+}
+
+#searchResultsListColumn {
+  float: left;
+  width: 47%;
+}
+
+#searchResultsVideoColumn {
+  float: right;
+  width: 47%;
+}
diff --git a/zend/demos/Zend/Gdata/YouTubeVideoBrowser/video_browser.js b/zend/demos/Zend/Gdata/YouTubeVideoBrowser/video_browser.js
new file mode 100644
index 0000000..3e91bcc
--- /dev/null
+++ b/zend/demos/Zend/Gdata/YouTubeVideoBrowser/video_browser.js
@@ -0,0 +1,228 @@
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Gdata
+ * @subpackage Demos
+ * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+
+/**
+ * @fileoverview Provides functions for browsing and searching YouTube 
+ * data API feeds using a PHP backend powered by the Zend_Gdata component
+ * of the Zend Framework.
+ */
+
+/**
+ * provides namespacing for the YouTube Video Browser PHP version (ytvbp)
+ */
+var ytvbp = {};
+
+/**
+ * maximum number of results to return for list of videos
+ * @type Number
+ */
+ytvbp.MAX_RESULTS_LIST = 5;
+
+/**
+ * navigation button id used to page to the previous page of
+ * results in the list of videos
+ * @type String
+ */
+ytvbp.PREVIOUS_PAGE_BUTTON = 'previousPageButton';
+
+/**
+ * navigation button id used to page to the next page of
+ * results in the list of videos
+ * @type String
+ */
+ytvbp.NEXT_PAGE_BUTTON = 'nextPageButton';
+
+/**
+ * container div id used to hold list of videos
+ * @type String
+ */
+ytvbp.VIDEO_LIST_CONTAINER_DIV = 'searchResultsVideoList';
+
+/**
+ * container div id used to hold the video player
+ * @type String
+ */
+ytvbp.VIDEO_PLAYER_DIV = 'videoPlayer';
+
+/**
+ * container div id used to hold the search box which displays when the page
+ * first loads
+ * @type String
+ */
+ytvbp.MAIN_SEARCH_CONTAINER_DIV = 'mainSearchBox';
+
+/** 
+ * container div id used to hold the search box displayed at the top of
+ * the browser after one search has already been performed
+ * @type String
+ */
+ytvbp.TOP_SEARCH_CONTAINER_DIV = 'searchBox';
+
+/**
+ * the page number to use for the next page navigation button
+ * @type Number
+ */
+ytvbp.nextPage = 2;
+
+/**
+ * the page number to use for the previous page navigation button
+ * @type Number
+ */
+ytvbp.previousPage = 0;
+
+/** 
+ * the last search term used to query - allows for the navigation
+ * buttons to know what string query to perform when clicked
+ * @type String
+ */
+ytvbp.previousSearchTerm = '';
+
+/**
+ * the last query type used for querying - allows for the navigation
+ * buttons to know what type of query to perform when clicked
+ * @type String
+ */
+ytvbp.previousQueryType = 'all';
+
+/**
+ * Retrieves a list of videos matching the provided criteria.  The list of
+ * videos can be restricted to a particular standard feed or search criteria.
+ * @param {String} queryType The type of query to be done - either 'all'
+ *     for querying all videos, or the name of a standard feed.
+ * @param {String} searchTerm The search term(s) to use for querying as the
+ *     'vq' query parameter value
+ * @param {Number} page The 1-based page of results to return.
+ */
+ytvbp.listVideos = function(queryType, searchTerm, page) {
+  ytvbp.previousSearchTerm = searchTerm; 
+  ytvbp.previousQueryType = queryType; 
+  var maxResults = ytvbp.MAX_RESULTS_LIST;
+  var startIndex =  (((page - 1) * ytvbp.MAX_RESULTS_LIST) + 1);
+  ytvbp.presentFeed(queryType, maxResults, startIndex, searchTerm);
+  ytvbp.updateNavigation(page);
+};
+
+/**
+ * Sends an AJAX request to the server to retrieve a list of videos or
+ * the video player/metadata.  Sends the request to the specified filePath
+ * on the same host, passing the specified params, and filling the specified
+ * resultDivName with the resutls upon success.
+ * @param {String} filePath The path to which the request should be sent
+ * @param {String} params The URL encoded POST params
+ * @param {String} resultDivName The name of the DIV used to hold the results
+ */
+ytvbp.sendRequest = function(filePath, params, resultDivName) {
+  if (window.XMLHttpRequest) {
+    var xmlhr = new XMLHttpRequest();
+  } else {
+    var xmlhr = new ActiveXObject('MSXML2.XMLHTTP.3.0');
+  }
+        
+  xmlhr.open('POST', filePath, true);
+  xmlhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); 
+
+  xmlhr.onreadystatechange = function() {
+    var resultDiv = document.getElementById(resultDivName);
+    if (xmlhr.readyState == 1) {
+      resultDiv.innerHTML = '<b>Loading...</b>'; 
+    } else if (xmlhr.readyState == 4 && xmlhr.status == 200) {
+      if (xmlhr.responseText) {
+        resultDiv.innerHTML = xmlhr.responseText;
+      }
+    } else if (xmlhr.readyState == 4) {
+      alert('Invalid response received - Status: ' + xmlhr.status);
+    }
+  }
+  xmlhr.send(params);
+}
+
+/**
+ * Uses ytvbp.sendRequest to display a YT video player and metadata for the
+ * specified video ID.
+ * @param {String} videoId The ID of the YouTube video to show
+ */
+ytvbp.presentVideo = function(videoId) {
+  var params = 'queryType=show_video&videoId=' + videoId;
+  var filePath = 'index.php';
+  ytvbp.sendRequest(filePath, params, ytvbp.VIDEO_PLAYER_DIV);
+}
+
+/**
+ * Uses ytvbp.sendRequest to display a list of of YT videos.
+ * @param {String} queryType The name of a standard video feed or 'all'
+ * @param {Number} maxResults The maximum number of videos to list
+ * @param {Number} startIndex The first video to include in the list
+ * @param {String} searchTerm The search terms to pass to the specified feed
+ */
+ytvbp.presentFeed = function(queryType, maxResults, startIndex, searchTerm){
+  var params = 'queryType=' + queryType + 
+               '&maxResults=' + maxResults +
+               '&startIndex=' + startIndex + 
+               '&searchTerm=' + searchTerm;
+  var filePath = 'index.php';
+  ytvbp.sendRequest(filePath, params, ytvbp.VIDEO_LIST_CONTAINER_DIV);
+}
+
+/**
+ * Updates the variables used by the navigation buttons and the 'enabled' 
+ * status of the buttons based upon the current page number passed in.
+ * @param {Number} page The current page number
+ */
+ytvbp.updateNavigation = function(page) {
+  ytvbp.nextPage = page + 1;
+  ytvbp.previousPage = page - 1;
+  document.getElementById(ytvbp.NEXT_PAGE_BUTTON).style.display = 'inline';
+  document.getElementById(ytvbp.PREVIOUS_PAGE_BUTTON).style.display = 'inline';
+  if (ytvbp.previousPage < 1) {
+    document.getElementById(ytvbp.PREVIOUS_PAGE_BUTTON).disabled = true;
+  } else {
+    document.getElementById(ytvbp.PREVIOUS_PAGE_BUTTON).disabled = false;
+  }
+  document.getElementById(ytvbp.NEXT_PAGE_BUTTON).disabled = false;
+};
+
+/**
+ * Hides the main (large) search form and enables one that's in the
+ * title bar of the application.  The main search form is only used
+ * for the first load.  Subsequent searches should use the version in
+ * the title bar.
+ */
+ytvbp.hideMainSearch = function() {
+  document.getElementById(ytvbp.MAIN_SEARCH_CONTAINER_DIV).style.display = 
+      'none';
+  document.getElementById(ytvbp.TOP_SEARCH_CONTAINER_DIV).style.display = 
+      'inline';
+};
+
+/**
+ * Method called when the query type has been changed.  Clears out the
+ * value of the search term input box by default if one of the standard
+ * feeds is selected.  This is to improve usability, as many of the standard
+ * feeds may not include results for even fairly popular search terms.
+ * @param {String} queryType The type of query being done - either 'all'
+ *     for querying all videos, or the name of one of the standard feeds.
+ * @param {Node} searchTermInputElement The HTML input element for the input
+ *     element.
+ */
+ytvbp.queryTypeChanged = function(queryType, searchTermInputElement) {
+  if (queryType != 'all') {
+    searchTermInputElement.value = '';
+  }
+};